R32 Gtr With R34 Brembos

[GTR KID]

hey guys bought a set of r34 brembo for the 32 I know I'll most likely need to drill the hubs out but choosing rotors picking the right ones can I purchase the r32 vspec rotors or do I have to get r34 rotors because the hubs have been drilled bigger?

needing to know before I purchase at the checkout of rhd Japan

[GTSBoy]

Um......you don't have to drill the hubs. You drill the caliper mounting holes in the uprights. The rotor and hub are a different part of the equation.

[GTR KID]

yeah don't know why I was thinking hub lol

but does it matter if I get the vspec 32 rotor for the 34 caliper because it's goin a 32 model

or will I need 34 rotor for the caliper

or doesn't it matter as long as the rotor is for the vspec caliper?

[GTSBoy]

It's the same 324mm rotor regardless of R32-34

[GTR KID]

true

[GTR KID]

thought their might have been a difference with the rotor fitting in the calipers

[GTSBoy]

No, they're all the same. The only difference is the holes in the caliper mounts.

[GTR KID]

Coolio

[GTRsean]

All same, all have sony guts!

As in he's right, you can use 32-33-34GTR brembo sized disks. 324x30mm

[niZmO_Man]

You don't have to drill anything. Get M12x1.5mm helicoils and put them on, much easier and less messier. You can either use R33 GT-R bolts or get your own high tensile ones (M12x1.5mm, 45mm long I believe, I put 40 and 50mm on mine, both fine).

As mentioned, the rotors are all the same for R32-R34 Brembo except rear R34 V-Spec (not relevant to you).

[GTR KID]

ok cool I was thinking of getting r34 hubs if that would have prevented the drilling

but probably a whole lot cheaper and easier with the helicoils

[(OO)SKYLINE(OO)]

Brake pads are same sizing too.

[GTR KID]

so get the smaller thread helicoils for calipers too keep standard bolt size

can the helicoils be removed ?

[niZmO_Man]

You can't use the Sumitomo bolts because they are M12x1.25mm whereas the Brembo uses 1.5mm pitch.

Yes the helicoils can be easily removed.

[GTR KID]

oh ok

bolts are different aswell

thanks

[GTSBoy]

Well, you could use the bolts from a pair of R34 Sumitomos (assuming you could find some lying around).

Of course the bolts are different......that's why there's a bigger hole in the upright and a different thread in the caliper.

[niZmO_Man]

Hey man, I made the mistake of assuming the pitch was 1.25mm and wasted a couple hundred millilitres of brake fluid (swapping a caliper again).